Clincher coupling



y 1954 D. L. SPENDER ET AL 2,679,409

CLINCHER COUPLING Filed Jan. 24, 1951 INVENTORS. Donald L. Spender HenryJ. Kclchergis Patented May 25, 1954 CLIN CHER COUPLINGr Donald L.Spender, Wolcott, and Henry J. Kachergis, Waterbury, Conn., assignors toScovill Manufacturing Gompany, Waterbury, Cnn., a corporation ofConnecticut? Application January 24, 1951}.Serial;No. 207,536 1 Claim.(01. 285-84) This invention relates to hose couplings or couplingconstruction as it appears before asmenders. and particularly to theclincher memsembly'toa hose. ber used in association therewith in makingcon- Fig. 2 is a sectional View through the coupling nection to the endof a hose. as it appears when assembled to a hose.

It has been customary in the past to make Fig. 3 is aside elevationalView ofthe same. such clincher members with a series of fingers Fig. 4is an end View of the clincher member projecting outwardly on a biasfrom a continuper se: ous ring each finger being straight through- Fig.5 is a transverse sectional view through out its length and terminatingin a flanged or the coupling as assembled, the View taken along gripperend. It was usual to provide ten or more the1ine.5'-5 of Fig. 3.

fingers to a clincher member and have them Fig; 6 is a transversepartial sectional view spaced somewhat apart. takenalong the line 6--6of Fig. 3,,and

These fingers in being made straight lie flat Fig; 7 i a ide V w Of thecl n her member against the outer surface of the hose when hamp r meredthereagainst and so do not exert a suffi- In the drawing thenumeral l0refersto a holcient binding force around the complete circum- 10w nipplehaving one d p ovided with a series ference of the hose material toeffect a seal exf b t p d Circumferential enlargements cept at thefinger ends which are provided with H and which are adapted to beinserted into a inturned flan es. These flanges as formerly dehose TheOpposite d f the pp s p osigned biteinto the hose material and are in-Vided With an Outward flange cted to tended to effect a seal at thatpoint. In fact this end 0f the nipple is a connecting ut l4 they wouldeffect a continuous bite and cut into aving a flanged end I5 that engags i back of the hose around its complete circumference rethe nippleflange 3 for W y connecting h sulting in greater liability of breakageof the 11111; With the nipple A Clincher m mber is is hose at thatpoint, provided that consists of a continuous ring por- Aceording to ourinvention, first, a, con id tion I! that is initially of conical shapeas seen ably smaller number of fingers are used; secin the upper SectionOf ig- 1- A series of finondly, they are curved in transverse section sogei's extend W d y om the Outer edge that they exert a uniform bindingaction comf the ring l1 and pr a y there r nly six pletely around thenose at their mid portions; Of these fi ers providedh se fi s arethirdly, they are curved or bowed inwardly in made arcuate in theirtransverse section as seen a lengthwise direction so that they tend tocrowd in 5 t0 give them greater th and also the hose material over aconsiderable area and 1J0 Conform 130 the 0111381 Shape Of e hose. Theprovide a sealing effect in that portion rather Outer ends of the fi g sare formed with inth relying on th flanged ends; fourthly the wardlydirected flanges IS, the terminal ends of cut-outs or spaces between thefingers are of Which a provided With cut-Out portions 23 thus suchpredetermined size and shape that the edges provldmg for pail of spacedteeth Also of the curved sections come together when the each of thefingers in their longitudinal ection clincher fingers are bent againstthe hose; fifthly, is Curved inwardly to p v de a bOWed Section 22. theend flanges have deep tt so as t In order to secure the clincher memberl6 pervide in effect teeth which bite into the hose mamaneniily t0 thenipple the i a ing i7 is s i l t which d t t a continuous ring forcedoutwardly from its original conical state in the hose thereby lesseningthe liability of failwherein the Opening 23 in th in Will be reure 0fthe hose at that point. duced in diameter causing the inner edge of theWith our improved construction a leak-proof ring I7 170 be forcediIIi'IO the pp d f rm joint is obtained not by reliance upon a continitsown groove as shown at 24 in the lower half uous bearing of the flangeson the hose but by of Fig. 1. Recesses 25 provided in the edge ofcontinuous bearing of the curved mid sections ring I! serve to grip hipple material so as of the fingers. to prevent relative rotation of theclincher mem- The preferred embodiment of our invention is her and thenipple. As shown in Fig. l the shown in the accompanying drawing inconnecclincher member I6 in being assembled to the tion with a femalehose coupling and of course nipple ID will preferably be held in spacedreit is applicable as well to a male coupling. lationship to the nut 14so as to prevent any In the drawing: binding action.

Fig. 1 is a part section and part side view of the The cut-outs 26between the fingers 18 in the condition just prior to assembly of thehose, as seen in Fig. 7, are narrower at the apex and widen out in acurve towards the ends of the fingers. The size and shape of thesecut-outs 26 are predetermined to bring the adjacent side edges of thefingers 18 into abutting relation when the clincher fingers are bentagainst the hose material as seen in Fig. 3. In addition to the factthat this provides a continuous grip around the hose in the zone of thebowed midsection 22 of the fingers 18 the abutment of these fingersserves in effect as a stop to prevent the end flanges IQ of the fingersbeing driven too far into the hose material.

Another important feature of the bowed fingers is that when they areclosed about a hose end this clincher member can assure a firmcircumferential squeeze on various hose of different wall thicknesses towhich the coupling may be As a result of our invention it will beevident that for the first time a clincher coupling is provided whicheliminates the aforementioned drawbacks of former clincher couplings,thus extending their serviceability and field of use.

What we claim is:

In a hose coupling, a nipple for insertion into the end of a hose, aclincher member surrounding the nipple, said clincher member having aring portion securing it to the nipple, a series of fingers extendingbackwardly from said ring portion, said fingers flaring outwardly sothat their free ends lie in a circle of substantially larger diameterthan said ring portion and being bendable to a different set positionwith respect to 3,)

said ring portion, said fingers being curved outwardly in transversesection and being also longitudinally bowed inwardly, said fingers beingsufficiently wide and close together at their inwardly bowed portionsthat when they are bent inwardly to a set position where the free endslie in the same size circle as said ring portion the inwardly bowedportions which will then lie in a smaller circle will be substantiallyin edge-toedge contact so as to exert substantially continuous pressurearound a hose, said fingers having inturned flanges on their free endsto provide teeth that bite into the hose material, the free endsincluding the flanges being sufficiently narrower than the inwardlybowed portions that when so bent they will not come into edge-toedgecontact, the transverse curvature of the fingers correspondingapproximately to the curvature of the periphery of the ring portion.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 946,703 Nelson Jan. 18, 1910 1,033,269 Bradnack Jan. 6, 19141,321,324 Nelson Nov. 11, 1919 1,486,421 Dyer Mar. 11, 1924 1,965,426Nelson July 3, 1934 2,142,752 Howard Jan. 3, 1939 2,280,892 Cowles Apr.28, 1942 2,437,933 Brennan Mar. 6, 1948 FOREIGN PATENTS Number CountryDate 243,162 Great Britain Mar. 4, 1926 275,802 Great Britain Aug. 18,1927

